Method of forming pressed-metal hinges



Nova 13, 1928. 1,691,109

R. F. CARPENTER METHOD OF FORMING PRESSED METAL HINGES Filed June 9,1921 Patented Nov. 13, 1928.

UNITED STATES 391mm Ma mara 9 CLEVELAND HEIGH OH O. .ASSIGI$T R THE sawPATENT OFFICE.

METAL lRQWG??? QM eiWJ cra -m s ara A c mmas r ontoi rngcnon or romainernnssnn-nnrnn amass- Application filed June 9,

This invention relates to improvements in pressed metal hinge membersand the method of forming the same.

The objects of this invention are to provide .5 a hinge construction ofpressed metal and to devise an improved method of forming the same.

Other objects of this invention will appear frornthe followingdescription and claims 10 when considered together with the accom- Pe rn re ne- Fig. 1 shows the form ofblank'metal from which the hingemembers are pressed up; Fig. 2 is an inverted plan View of the same 1.)-metal blank after being pressed; Fig. 3 shows the same pressed metalblank in elevation; Fig. 4 is a perspective view of the lower hingemember formed from the blank; and Fig. 5 is a perspective View of theupper hinge mem- 2o ber formed from a similar blank.

7 The metal blank shown in Fig. 1 comprises the end portions 1 and 2,the knuckle port-ion 3 which has the extension 1, and the intermediateportions 5 and 6 j oining the end and knuckle portions. The extension 4:is spaced. from the end portions as indicated at 7 and the intermediateportions are curved as indicated at 8. The edges of the intermediateportions on the other side of the blank are also curved as indicated at9 and join the knuckle portion in the curved edge 10. The screw holes 11are provided in the end portions.

Starting with this flat metal blank, the end portions are pressed upinto the flanges 12 and 13 to form brackets for engaging the door post.The edges of the intermediate or neck portions 5 and 6 are also pressedinto flanges 14 and 15. The shoulder 16 is pressed into the blank toform the extension 4 of reduced diameter, and the knuckle portion of theblank is also pressed so as to lie in a plane between that of theflanges 12 and the neck portions, the knuckle and intermediate neckportions joining each other in the curved portion 17. I

The next step consists in closing the two halves of the blank upon eachother so as to form the complete hinge member indicated in Fig. 4. Theflanges 13 are thus brought into alignment with each other while thecurved portions 14 and 15 abut each other, thereby forming a hollow neckortio-n. The hinge member is then ready to e applied to the door post bymeans of screws through the 1921 Serial No. 475,211,

other side of the blank, that is, With the I curved edges 9 and '10. Inother words, the blank used to form this particular hinge member issymmetrical not only with respect to the transverse axis but also withrespect to the longitudinal axis therethrough. This blank is thenpressed up sons t ifO Eln the flanges as already described in connection7 with the first form except as to the reduced portion 4. The hingemember is then completed by closing thetwo halves of the blank upon eachother, thereby abutting the flanges 1 1 and .15 against each other atthe two ends of the neck portion. This hinge member is then ready to beapplied to the upper portion of the door post.

From the above it will be seen that I have not only provided hingemembers pressed up from blank metal, which means a decrease in the costof manufacture, but have also devised a method of pressing up such hingemembers from metal blanks which lends to the facility with which suchhinge members can be manufactured. A further advantage resides in thefact that the blanks after they have been pressed into the formillustrated in Figs. 2 and 3, can be shipped and then completed byclosing the two halves of the blanks upon themselves. This means adecided saving in the space required for shipping of such hinge members.

Other advantages resulting from this invention will suggest themselvesto those who are familiar with the art towhich it relates.

What I claim is:

l. A blank for a hinge member, comprising a knuckle portion, each endportion of said knuckle portion being curved and continuing into a neckportion, said neck portions extending substantially parallel to saidknuckle portion and each of said neck portions continuing into an arm-ofan angular bracket portion, each bracket portion comprising two arms,the second arm thereof constituting the end portion of the blank and thetwo halves of the blank being suhstan tially symmetrical.

2. A blank for a hinge member, comprismg a knuckle portion, each endportion of sald knuckle portion being curved and contin- "uing into aneck portion, said neck portions 5 transverse axis thereof.

3. The method of forn'iing a hinge member from a sheet metal blank havina knuckle portion, end angular bracket portions and 'intermedlate neckportions, consisting 1n pressing said blank to completely form theangular brackets and partially form the knuckle, and then cOn'lpletingthe hinge mem her by pressing the knuckle to substantially cylindricalshape and thereby bringing the I neck portions into substantiallyparallel re-' lation. Y

4. Theinethod of forming a hinge member from a sheet metal blank havlnga knuckle port on, end angular bracket portions and intermediate neckport-ions, consisting in pressing said blank to completely form theangular brackets and simultaneously partially form the knuckle, and thencompleting the hingemember by pressing the knuckle to substantiallycylindrical shape and thereby bringing the neck port-ionsintosubstantially .parallel relation.

5. The method of forming a hinge member from a sheet metal blank havinga knuckle portion, end bracketportions and interme-r diate neckportions, consisting in pressing said blank to completely form brackets,to provide the neck portions with inwardly extendingstrengtheningflanges, and to partially form the knuckle, and then completing thehinge member by pressing the knuckle into substantially cylindricalshape and thereby bring the neck portions into substantially parallelrelation.

.In testimony whereof lrherebyf'afiix my signature. Y a

ROBERT, F. CARPENTER.

therein tha t t hevsame may confurm 10th CERTIFICATE OF CORRECTION.

Patent No. 1,691,109. Granted November 13. 1.928. to

ROBERT F. CARPENTER.

It is hereby certifisd that error appears'in the printed specificatimiof the above numbered atent requiring correction as follows: Eage .2,line 10, claim 2, for the wordfisaid" read "a and after the ward"portion" insert the word "each"; and that. the said Letters Patentshould be read with these. corrections 0mm of the case in the PatentOffice.

Signed and sealed this 8th day (if January. A. D. 1929.

M. J. Moore, (Seal) Acting Gmumissioner of Patents.

